Reinforced tile or slab.



PATENTBD MAR; ze, 19o?.

y o. o. 1mm.y f- REINPORUBD TILE 0R SLAB.

APPLIOATIOH FILED DBO. .27. 1906.

arianne,

- be distributed CHARLES c, DAVIS, or PII'ILADEIIIIA, PENNSYLVANIA.

REINFORCE'D TILE OR SLAB.

i Specification of Letters Patent. Application filed Becam-11u27, 1906.Serial Noi. 349,677.

Patented maren 26, ieov.

To all whom t may concern:

Be it known that I, CHARLES C. DAVIS, a citizen of the United States,residing at Germantown, Philadelphia, in the count of Philadelphia andState of Pennsylvania, ave invented certain new and useful Improvementsin Reinforced Tiles or Slabs, of which the following is a specification.

My invention Arelates to improvements in reinforced concrete tiles orslabs; and it consists in the constructions, combinations, andarrangements herein described and claimed.

An object of my invention is to provide an improved concrete tile havingan efficient reinforcing structure adapted to insure a maximum ofstiffness and rigidity with a mini` mum of reinforcing material.

Afurther object of my invention is to provide an improved reinforcedconcrete tile having a substantially uniform stiffness throughout and inwhich loading strains will 'on the reinforcingconstruction.

A further object of vmy invention is-to provide reinforced concretetiles constructed to be conveniently assembled and secured in osition toconstitute a strong, durable, and

' impervious roofing.

In the accompanying drawings, forming a art of this application, and inwhich simiar reference-symbols indicate corresponding parts in theseveral views, Figure Lis a fragmentary sectional View illustrating aportion of a roof formed of my improved tiles. Fig. 2 is a side edgeelevation, on a larger scale, of one of the tiles shown in Fig. 1.A Fig.3 is a sectional view in the plane of the transverse retaining andstrengthening bars ofthe reinforcing material, showing 011e tile 'andportions of two acent tiles; and Fig. 4 is a detail perspective viewshowing the common means for securing together the corrugatedforaminated sheet, transverse retaining and strengthening bars, and thesupporting-lugs.

.Re erring to the drawings, 1 indicates a sheet of foraminated materialprovided with longitudinal corrugations and which can be advantageouslyformed -of expanded'metal or of heavy woven mesh of iron or steel wire.At suitable distances along the sheet 1 transverse retaining andstrengthening bars 2 extend freely through openings'in the side walls ofthe several corrugations of said sheet.

Supportin -lugs 3 for Securing the tiles in -their assemb ed' positionon the building are shown, vcomprising angle-plates havlng one facelying ainst the end corrugations of the sheet 1. T e supporting-lugs aresecured to the bars 2 by bolts 4, extendin through Said lugs and the endportions of sai bars. These bolts extend also through thel ortions ofthe between the y sheet 1 which are interpose supporting-lugs andthebars 2, thereby securmg the corrugated sheet 1 to the end' 'ortionsof the retaining and strengtheningl ars y2. By thus securing the endcorrugations of the sheetl 1 the l intermediate corrugations arepermitted to adjust themselves uniform] along the retaining-bars 2, andstrains ten I into atten any of the corrugations'are distri uted vto theseveral corrugations. This provides a very advantageous constructionaving a maximum of stiffness with a Illinimum of reinforcing materialand having'a.

substantially uniform stiffness throughout.4

The tiles 5 are formed of-,suitable material,-

preferably concrete, which is molded to pro vide beveled lips 6,extending from the sides thereof. One of the lips on each tile extendsflush with the upper surface thereof.,l and the other lip extends flushwith the lower surface thereof, said lower lip being formed somewhatlonger than the upper lip in order toVV provide a channel 12 for theinsertion ofY a suitable grouting or luting between the overlapping lipsof-adjacent tiles, as shownl especially in Fig. 3.

Referring especially to Fig. 1 of the draw# ings, 8 indicates the usualangle-iron purlms,

to which the tiles are secure by bolts 9, ex-

.tending through the openings 10 in theirsup-Y The several tiers oftiles are porting-lugs. shown arranged with the lips of theadjacent.

tiles overlappingvandwith the lower tieroftiles formed to provide acontinuous gutter 11."

I have illustrated and described a'preferred and' satisfactoryconstruction; but

obviously 'changes could be made within the' spirit and scope of minvention.

Having thus descri ed my invention, Wlft.

I claim as nrw, and desire to securebyiet.- ters Patent, is-

1. A reinforced concrete tile, comprising a corrugated;sheetcffforaminated material,

retaining and strengthening bars extending through openings in the sideWalls ofthe sev eral corrugations of said sheet, means for clampingsaidsheet to the-end portionsqf` said bars, and a body of plasticmaterial invcasing said sheet and retaining-bars, slibstantially asdescribed.

, V2. A reinforced concrete tile, cornprisingiaA :orrugated slieetofforaminated material, re-

taining and strengtliiening` bars extending through openings in thewalls 0f the several corrugations of said sheet, supporting-lugs `forsecuring said tile in position, a common v means for securing said lugsto the end por-- i. tions of said bars, and the adjacent portions ofsaid corrugations, and a body of plastic -inaterial incasing said sheetand retainingbars, substantially as described.`

several corrugations of said sheetfsupport- I5 ing-lugs engaging the endcorrugations of said sheet, a common means for fastening saidsupporting-'lugs to the end portions *,of said barsand for securingthereto the interposed portions of said corrugated sheet, and a body ofplastic material incasing said sheet, andretainingbars, substantially asdescribed. In testimony whereof I affix my signature in presence of twoWitnesses.

CHARLES C. DAVIS. Witnesses:

HOWARD A. DARLING, B. B. Llsrs.4

